Catherine, Princess of Wales, is scheduled to attend a charity reception in London where the King and the Queen will also be present, according to reporting from multiple outlets. The event is hosted in honour of Cancer Research UK and is set for Tuesday evening. One source notes that the princess is in remission, framing her participation in the context of her cancer recovery. Another outlet reports that Kensington Palace has confirmed her attendance, reinforcing that the engagement is officially planned rather than speculative. The accounts agree that the reception brings together senior members of the UK’s royal family and that it is specifically tied to Cancer Research UK. The sources do not provide additional details beyond the event purpose, timing, participants, and the update that the princess is in remission. No further information about attendance arrangements or public appearances before or after the reception is included in the provided text.